Type-writing machine.



PATENTED OCT. 29. 1907,

A. W. BU'GKWBLL.

TYPE WRITING MACHINE.

APPLICATION FILED MAY 17,1907

'2 SHEETS-138T 1 INVENTEJR:

WITNESSES:

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14:55; ATTURNEY N01 869,547 PATENTBD OCT. 29, 1907 A. W. BUGKWELL.

TYPE WRITING MACHINE.

APPLICATION FILED MAY 17,1907- 2 SHEETS-SHEET 2.

WITNEEEEEQ NVENTUR: M

/ ail/X5 U ITE STATE PATENT OFFICE.

ARTHUR w. BUGKWELL, OF NEW YORK, N.

COMPANY, OF SYRACUSE, NEW YORK, A CORPORATION OF NEW YORK.

TYPE-WRITING MACHINE.

Specification of Letters Patent.

Batentedoct. 29, 1907.

Application filed May 17.1907. Serial No. 374.115.

To all whom it may concern: I

Be it known that I, ARTHUR W. BUcKwELL, a citizen of the United States, and a resident of the borough of Manhattan, city of New York, in the county of New York and State of New York, have invented certain Heretofore, especially in visible typewriters, diifi- 'culty has been experiencedin the ribbon at times catching on portions of the machine, such for instance as a portion of the paper directing means or the card guide or holder when the ribbon is actuated by the vibrator.

One of the main objects of my present invention is to provide means for overcoming these difficulties and to provide simple and efficient means for guiding said ribbo'n as it is moved transversely of its length by the ribbon vibrator and for preventing the ribbon during such movements from catching and being held against move ment.

To the abo ve and other ends which will hereinafter appear, my invention consists in'the features of construction, arrangements of'parts and combinations of devices set forth in the following specification and particularly pointed out in the appended claims.

Inthe accompanying drawings, wherein like reference characters indicatecorresponding parts in the various views, Figure 1 is a fragmentary, enlarged, detail front elevation showing a portion of the platen, a portio'nof a paper finger, a card guide, a ribbon vibrator and one form of device embodying my invention, said device being shown affixed to the vibrator. Fig.2 is a vertical central fore and aft sectional view of the parts shown-in Fig. 1, the front section only of the platen being shown. Fig. 3 is a'detail'central vertical sectional view, taken fore and aft of the machine, of a ribbon vibrator with one form of device embodying myinvention applied thereto. Fig. 4 is a detail front elel form of device which is illustrated in Fig. 5. Fig. 7 is vation of the same. Fig. 5 is a view corresponding to Fig. 3 but showing another form of a device embodying my invention. Fig. 6 is a front elevation showing the a diagrammatic view in horizontal section through the ribbon vibrator and adjacent parts.

In the present instance I have shown my invention applied to a Monarch machine, although it should be un- I derstood that my invention may be embodied in other styles of typewriting machines.

The top plate'l of the machine supports a carriage (not shown)in which a cylindrical platen 2 is mounted to rotate, said carriage movingfrom side to side over the top plate in the usual manner. 'Su-itable paper fingers 3 are mounted on the carriage and project downwardly in front of the platen and across the printing line indicated by the dotted line a in Fig. 1. In the drawing, the paper finger is broken away and only the lower portion thereof is shown. A front plate 4 is secured to the top plate of the machine by screws 5. Secured to this front plate and to the top plate'by screws Y., ASSIGNOR TO THE MONAROH TYPEWRITER I 6 is a fixed guide 7 which has upwardly extending arms 8 grooved in the outer sides thereof as at 9 for cooperation with inwardly bent edges 10 of a ribbon vibrator which is preferably made of sheet metal and may be constructed as represented in detail in Figs. 3 and 4.

-The edges 10 constitute parts of upwardly directed arms 11 which are spaced apart and are situated on opposite sides of the printing point. Bearings 12 are provided on said arms to receive the lower ends of upwardly extending pins or arms 13 which have hooklike members 14 at the upper ends thereof.

-From an inspection of Figs. 1 and 2 it will be seen that .the ribbon 15 extends first forward of one of the arms 13 and under the hook-like member 14 thereof and then back of the associated armll and across the space between the two sets of arms, thence back of the opposite arm 11 and in front of the associated arm 13. In other words, the Ijibbbn in passing from one spool to another passes through the space or slotted passage way 16' formed between each pair of arms 11 and 13 and back of the arms 11 and forward of the arms 13, A cross piece 17 unites the arms of the vibrator and is provided with a depending stem 18 which is pivoted to an actuating lever 19 at 20. The actuating lever is" pivoted at 21 to a depending lug 22 on the top plate of the machine. The

rear end oftho actuating lever 19 is connected to devices for operating it, which devices may be of the general character shown in'the patent to Jacob Felbel and Carl Gabrielson, No. 703,339, dated June 24th, 1902 and in which automatic means are employed to present different w'idthwise portions of the ribbon to the printing point in order to use the ribbon widthwise as well as longitudinally. In Fig. 1 the parts are shown in the positions which they occupy when the lowermost portion of the ribbon-is presented to the printing point. i

Inthe Monarch machine a paper directing device or card guide or holder is employed such as is shown in the accompanying drawing, this paper device as here illustrated being of the character shown in the patent to George A. Seib, No. 821,382, dated May 22nd, 1906. A plate-like supporting bracket 23 is secured to the front plate 4 by shouldered headed screws 24, the shoulder portions 25 of said screws bearing against the face of the bracket plate-and securing it inpositiom The upper end of the bracket plate is formed with perforated cars 26 to form bearings for a pivot rod 28, said rod likewise projecting through hearings in ears 29 formed on and projccting 'rearwardly from a card holder or guide 30. A spring 31 is coiled around the pivot 28 and bears at one end 32 against the card guide and at the opposite end 33 against the outer face pf the with the cams formed by the bent arms 34 to positively force the upper end of the card guide towards the platen or release it from positive pressure. ln-ordor to facilitate the movement of the locking plate-36 finger pieces 38 are provided .by which it may be manipulated. The upper portion oi the card guide com-.

prises two arms 39 with outwardly projecting exten- S such that when either of the paper fingers 3 reaches the card guide, said paper finger. passes behind said I ribbon vibrator toit sions 40. These arms are spaced apart and extend onopposite sides of the printing point and terminate at.

their upper ends at the line a as shown in Fig. 1, which line is coincident with the bottoms of the characters at the printing line so that the card guide also constitutes a line indicator. :The construction of thegparts -card guide, so that said card guide receives-aslig'ht w rd deflection at the upper end thereof around pivot 28 as shown in Figs. land 2; The portions s far described are similar to those employed in the Monarch machine. I v I l i In practice it has sometimesbeen found that the reprocation of the ribbon vibrator will carry the lower dge'of the ribbon above the upper free ends of the card guide, especially when the ribbon vibrating mechanism is in position'where the lower portion of the ribbon is interposed in the'path of thetypes and especially when the upperedge of the card guide is deflected forwardly by one of the paperguides 3, as shown in Fig. 7,

In order to prevent the ribbon from being caught upon. the cardguide 30 or paper directing device, lhave pro-,

shown in Figs '1 and 2, so as to act as'a guide for the rib-' bon and to prevent it from; catching cntop of the card guide, At the lower parts, the fingers 41jar'e..bent towards each other and 'meeting 7 extend downin .contact as at4 2, terminating in'a loop 43 that surrounds the shank of a rivet 44 which connects the device to the ribbon vibrator. fFrom an inspection of Figs. 2 and 3 it will be seenthatthese arms 41 arejnclinedreap wardly'irem thepointwhere they are secured toithe heir'jupper ends and that said arms losit'e -sides of the printing point,

are situated on 1 and also betwe'nthe ribbon vibrator andthe platen.

Th'e'construction is'such that the armstl constitute an seas tr embodying my invention in which the fingers 41 are I formed'as an integral part of the ribbon vibrator, the '3 the parts are constructed essentially the same manner as heretofore described.

In the operation otthe device the safety'fingers 41 or of the ribbon and forward ofthe card guide will'pre vent the lower edge of the ribbon from catching on the upper edge of the card guide, and will hold the lower edged the ribbon forward and away fromthe card guide so that during the downward movement of the vibratorj: from its uppermost positionthe ribbon'is also prevented from catching on the guide: The safety fingers being interposed between theribbon and the platen, 'effectually prevent the ribbon from contacting with the platen of the paper, except Whenfstruck by'a type,.and 7 also prevent inteif'erence'between the ribbon and any part that may'beananged between the ribbon and the platen. Asthese fingers are liable to be more or less them of light spring metal. Preferably the fingers 41 extend an appreciable distance abovethe top edge of the card-holder to insure that the ribbon shall not get caught on the card-holder even if the vibrator be Vi0 lently actuated and the ribbon be quite loose between ,spo'ols: j

41*, moving upwardly withthe ribbon vibrator inrear deflected from'one cause or another, I prefer to make" .O rdinari1y thejnpper edge of the card guide hugs the platen or the paperor cardthereon so closely that there is little liability-of the lower edge of the ribbon catching on the card guide. This eat ching of the ribbon in .the'prior construction is more liable to occur when the upper end of the car'd gu ide is' forced outwardly by a paper finger 3; but by my invention all catching of the ribbonis sow entirelyfavoidedi Theribbon guard, fender or safety device, so -called,

may be of any'desired form and detailed construction,

so long as it serves the primary purpose of preventing the inking ribbon from catching upon any device or dewithout departing from thespirit and scope of my inventionQ v v I at I claim as new and desire to secure by Letters Patent,is: a i -1. In a'typewriting' machine, the combination with a platen and a ribbonvibrator having a slot on each side of 'theIprinting point, of auxiliary safety fingers interposed between the ribbonia'nd platen; v

2. In a typewriting machine, the combination with a platenya ribbon vibrator, and a relatively fixed paper directlng device, of an auxiliarysafety device interposed be tween the ribbon and-paper directing device and extending above .the latter, for,preventing the ribbon from catching on said paper directing device.

vices which may be employed adjacentthe ribbon to assist orserve in any way in theldirecting, feeding,

3. In a typewriting machine, the combination with a platen, a ribbon vibrator and a relatively fixed paper directing device, of auxiliary safety fingers carried by said vibrator and interposed between the ribbon and paper directlng device and extending above the latter, for prevent: 'ing the ribbon from catching on said paper directing device.

4. In a typewriting machine, the combination with a platen, and a ribbon vibrator having a pair of arms on each side of the printing point with a space between the arms of each pair through which space the ribbon is guided, of auxiliary safety fingers between the ribbonand platen and between the pairs of arms of the vibrator and on opposite sides of the printing point.

5. in a typewritiug machine, the combination with a platen, and a ribbon vibrator having a pair of arms on each side of the printing point with a space between the arms of each pair through which space the ribbon is guided, of auxiliary spring safety fingers carried by the vibrator and extending between the ribbon and platen and between the pairs of arms of the vibrator and on opposite sides of the printing point.

6. In a typewriting machine, the combination with a platen. a ribbon vibrator having a pair of arms on each side of the printing point with a space between the arms of each pair through which space the ribbon is guided, and a paper directing device, of an auxiliary safety devlce extending between the ribbon and said paper directing device, for preventing the ribbon from catching on said paper directing device.

7. In a typewriting machine, the combination witha platen, a ribbon vibrator having a pair of arms on each side of the printing point with a space between the arms of each pair through which space the ribbon is guided, and a paper directing device, of auxiliary safety fingers ex tending between the ribbon and said paper directing device and between the pairs of arms of said vibrator and on opposite sides of'the printing point, for preventing the ribbon from catching on said paper directing device.

8. in a typewrlting machine, the combination-wlth a platen, a ribbon vibrator having a pair of arms on each side of the printing point with a space therein through which the ribbon is guided, and a paper directing device, of auxiliary spring safety fingers carried by said vibrator and extending in the rear of said arms thereof and between the ribbon and platen and between the ribbon and said paper directing device, for preventing the ribbon from catching on said paper dii'ectlngdevice.

.i. in a typewriting machine, the combination with a platen, a ribbon vibrator, and a paper directing device carried by a fixed portion of the machine and situated between the platen and the vibrator and terminating at or extending between the ribbon and near the printing line, elf-an auxiliary safety device extending between the ribbon and said paper directing device, for preventing the ribbon from catching on said paper- Y directing device.

10. In a typewriting machine, the combination with a platen, a ribbon vibrator, andv a paper directing device carried by a fixed portion of the machine and situated between the platen and the vibrator and terminating at or near the printing line. of auxiliary spring fingers extending between the ribbon and said paper directing device and on opposite sides of the printing point, for preventing the ribbon from catching on said paper directing device.

11. Ian typewriting machine, the combination with a platen, a ribbon vibrator, and a spring pressed paper directing device carriedby and pivoted to a iixed portion or the machine and situated between the platen and the vibrator and terminating at or near the printing line, of auxiliary spring fingers carried by the ribbon vibrator and said paper directing de vice and on opposite .sides ofihe printing point, for pre venting the ribbon from catching device.

12. in a typewriting machine, the combination with a platen and a paper handling device mounted on the framework of the machine at orin the vicinity of the printing point, of a ribbon vibrator. and a ribbon guard or tender carried by the vibrator and interposed between the ribbon and the paper handling device.

13. A ribbon vibrator having each side. of the printing point, behind the middle arm of each other two arms.

H. A ribbon vibrator having slotted passageways for the ribbon and also a supplementary safety device arranged back of the path of travel of the ribbon.

15. A ribbon vibrator having an open space in front of the printing point, a slotted passageway for the ribbon on each side at the printing point, and having also a supplementary arm on each side of the printing point back of the path of travel of the ribbon.

10. A ribbon'vibrator having on each side of the print ing point a guide arm or arms with a slotted passageway for the ribbon, and having a pair of supplementary arms back of'thc ribbon between the guide arms, one supplementary arm on each side of the printing point.

Signed at the borough of Manhattan, city of New York in the county, of New York and State of New York, this iiith day of May, A. D. 1007.

ARTHUR W. BUCKVELL.

a set of three arms on the ribbon being guided set. and in front of the Witnesses:

I). M. Wnhns, .i. B. Drums.

on said paper directing 

